Just a quick note on the new comment bubbles with the arrow line:
Wires (and other block diagram objects) treat these lines as something to avoid. I find this behavior to be frustrating. The purpose (in my oppinion) of the arrow lines is so you can place comment bubbles outside of your code sequences and point to the area of interest, which keeps your diagram better organized. The problem is that when you go to run wires etc, they automatically try to avoid the comment arrow line. This is silly.
Comment Arrow Lines should be ignored by all other wires/objecst so that wires just route directly through.
See contrive example screen shot below:
should instead be routed as this:
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